diff --git a/src/test/java/org/bitbiome/commands/CollectCommandTest.java b/src/test/java/org/bitbiome/commands/CollectCommandTest.java
new file mode 100644
index 0000000..cb718d1
--- /dev/null
+++ b/src/test/java/org/bitbiome/commands/CollectCommandTest.java
@@ -0,0 +1,26 @@
+package org.bitbiome.commands;
+
+import org.bitbiome.classes.JsonParser;
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.junit.jupiter.api.Test;
+
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class CollectCommandTest {
+
+    @Test
+    public void testIncreaseAmountInPlayerConfig() {
+        CollectCommand command = new CollectCommand();
+        JsonParser jp = new JsonParser();
+        JSONObject o = jp.getJSONObject("playerconfig.json");
+        JSONArray inventory = o.getJSONArray("inventory");
+        int k = 0;
+        int initialAmount = inventory.getJSONObject(k).getInt("amount");
+        command.increaseAmountInPlayerConfig(inventory, k, jp, o);
+        int finalAmount = inventory.getJSONObject(k).getInt("amount");
+        assertEquals(initialAmount + 1, finalAmount);
+    }
+
+}
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